| /* |
| * Copyright (C) 2019 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| #ifndef SYS_SENDFILE_H |
| #define SYS_SENDFILE_H |
| |
| #ifdef __cplusplus |
| extern "C" { |
| #endif |
| |
| #include <sys/cdefs.h> |
| #include <sys/types.h> |
| |
| /* |
| * sendfile() here is a relatively straightforward implementation, but |
| * obviously not as efficient as the typical syscall implementation which |
| * does not require buffers be transferred to userspace and can take |
| * advantage of DMA vectored I/O. |
| */ |
| ssize_t sendfile(int out_fd, int in_fd, off_t* offset, size_t count); |
| |
| #ifdef __cplusplus |
| } |
| #endif |
| |
| #endif // SYS_SENDFILE_H |